Resources

Parameciumpol2-SELECT

Description: ...

Attribution:

Type: image/jpeg

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Fluorescently labeled C. elegans movie

Description: This movie shows C.elegans moving under white light and then a green filter is inserted and the white light reduced and an ultraviolet light turned on to see the fluorescence of these genetically modified C.elegans with labeled nuclei of the nervous system.

Attribution:

Type: video/quicktime

Tags: c.elegans fluorescence microscopy

Uploaded over 2 years ago by marcom

Effect of VEGF Expression on Vertebral Growth Plates Following Hyproxic Stress

Description: The intention of this study is to confirm whether 1) that PDT can up-regulate VEGF in the growth plate and 2) that enhanced VEGF is prerequisite to growth plate closure and limb shortening.

Attribution:

Type: application/pdf

Tags: vertebral growth plates hypoxic stress

Uploaded about 2 years ago by chris.sumerlin

Fluorescence Imaging of the Prostate

Description: Dynamic imaging of the fluorescence from ALA-PpIX in the prostate at time of surgery. ALA (aminolevulinic acid) enhances the production in cells of the fluorescent molecule protoporphyrin IX, which is then imaged using a 3-color CCD camera attached to a rigid endoscope.

Attribution:

Type: video/quicktime

Tags: flourescence imaging prostate

Uploaded about 2 years ago by chris.sumerlin

Transmission of red, green and blue laser light through fingers

Description: Red, green and blue 5 mw lasers are placed on human fingers to see how much of the light can be transmitted through roughly 1cm of a finger.

Attribution:

Type: image/jpeg

Tags: transmission light laser red green blue hand finger

Uploaded over 2 years ago by marcom

Epi- vs. trans-illumination

Description: ...

Attribution: Ana Corbacho

Type: image/jpeg

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Measuring Hair Width with a Laser

Description: Using the diffraction properties of light it is possible to design an experiment that allows you to estimate the width of hair

Attribution:

Type: video/quicktime

Tags: hair width laser biophotonics teacher resource

Uploaded about 2 years ago by chris.sumerlin

Fluorescence Imaging of Cancer:A Convergence of Engineering, Biology and Chemistry

Description: conventional human endoscopy of the GI tract lack sensitivity and specificity for a variety of common malignancies. Various ways of improving this are being investigated. A potential solution using biologically-targeted nanoparticle-based optical contrast agents

Attribution:

Type: application/pdf

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Calcification

Description: calcified arterial section

Attribution: Marco Molinaro

Type: image/jpeg

Tags: calcification

Uploaded about 2 years ago by chris.sumerlin

Salt at 4x Magnification

Description: ...

Attribution: Marco Molinaro

Type: image/jpeg

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Endoscopic Doppler Optical Coherence Tomography

Description: ...

Attribution:

Type: application/pdf

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

oxygenated versus deoxygenated blood

Description: Two drops of blood are shown with a bright red oxygenated drop on the left and a de-oxygenated blood on the right.

Attribution:

Type: image/jpeg

Tags: blood oxygenated de-oxygenated

The owner of this asset didn't specify a license and because of this the following license applies:

Uploaded over 2 years ago by marcom

total internal reflectance with red laser

Description: shining a red laser into a curved piece of transparent plastic shows how light can go around a bend (total internal reflectance) as experienced in a fiberoptic cable. total internal reflectance, fiberoptic

Attribution:

Type: video/quicktime

Tags: total internal reflectance fiberoptic

The owner of this asset didn't specify a license and because of this the following license applies:

Uploaded over 2 years ago by marcom

Pharynx_Phase

Description: ...

Attribution: Marco Molinaro

Type: image/jpeg

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Sunscreen and Sunglasses: Do they really protect you from the sun?

Description: UV Beads Demonstration

Attribution:

Type: application/msword

Tags: teacher resource

Uploaded over 2 years ago by andrewlague

RGB color patches

Description: this file has pure red, green, and blue color patches as well as combinations. It can be used for reflectance measurements. Results will vary based on your printer. You can also use them directly from your computer screen to show how each color is composed of varying amounts of red, green and blue light.

Attribution: Marco Molinaro

Type: application/pdf

Tags: color rgb reflectance

Uploaded over 2 years ago by marcom

Image of brain tumor 2

Description: Image of brain human brain tumor (U87) transfected with gene for Green Fluorescent Protein (GFP), grown in rat brain

Attribution:

Type: image/jpeg

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Lecture 2-Tissue optics, light propagation in tissue

Description: The wide variety of diagnostic and therapeutic applications of optical, thermal, and radiation biophysics in today's medical practice are discussed in this course. The physical and biophysical interaction mechanisms between the energy sources and tissue are emphasized. Fundamentals of optical, thermal, and radiation dosimetry are covered, with reference to the relevant tissue properties, the models of energy propagation within tissues, experimental techniques for dosimetry measurements, and the resulting biological effects. This sets the stage for discussing selected clinical and investigational uses of light, heat, x-rays, microwaves, and ultrasound. Examples include radiation therapy, x-ray and optical mammography, fluorescence imaging and spectroscopy, optical coherence tomography, photodynamic therapy, biological confocal microscopy, laser-, microwave-, and ultrasound-induced thermal therapies, and Raman spectroscopy.

Attribution:

Type: application/pdf

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Interstitial Doppler Optical Coherence Tomography (via a fiber optic needle probe)

Description: ...

Attribution:

Type: application/pdf

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Utility of Optical Monitoring During Laser Thermal Therapy

Description: Interstitial laser photo coagulation (ILP), alternatively referred to as laser thermal therapy (LTT) is a promising treatment modality that utilizes an optically-induced temperature rise to thermally destroy tumors. One of the challenges of this therapy is its dynamic nature, as tissue properties (optical, thermal, blood flow, etc) change during therapy, hence making pre-treatment planning very challenging. This added complexity necessitates the use of real-time, on-line feedback. Here, we propose the use of interstitial optical fiber sensors for this purpose, and describe different changes in their detected optical signals as a function of various important events that occur in the course of LTT. The advantages of such optical monitoring approach, as well as the challenges, are described in the context of LTT optimization.

Attribution:

Type: application/pdf

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin

Fluorescent Embryo

Description: -reconstructed 3D image of a mouse embryo showing the expression of specific genes at this stage of development. -images generated by the technique of Optical Projection Tomography Reference: http://genex.hgu.mrc.ac.uk/OPT_Microscopy/optwebsite/frontpage/index.htm

Attribution:

Type: video/quicktime

Tags: There are no tags associated with this resource.

Uploaded about 2 years ago by chris.sumerlin